PMC Lone Star is the leading manufacturer of fixed and ground limit gaging for both plug & ring thread gages. PMC Lone Star will meet your requirements and custom build your thread gages to meet your exact specifications.

In addition to standard API gages, PMC Lone Star offers gage solutions for many other connections, including but not limited to the most popular connections listed below.

The design of PMC Lone Star’s Crest Diameter Gaging System improves upon the shortcomings of other variable gages, increasing measurement accuracy and effiency by increasing the reliability of the gage assembly and it’s mechanisms.

Calibration is the comparison of an instrument to a known standard. Proper calibration involves use of a NIST traceable standard – one that has paperwork showing it compares correctly to a chain of standards going back to a master standard maintained by the National Institute of Standards and Technology.

More than a century of experience combined with ongoing investments and upgrades of our manufacturing capabilities and technical abilities enables us to provide the highest quality and best craftsmanship of each gage.

The SquareMaster™ can be used for virtually any measurement of straightness, squareness or parallelism on interior or exterior surfaces.

The ContouReader™ inspects everything from dimples on golf balls to turbine blades with the same repeatable accuracy to reveal any defects, deviation from specifications, or rough edges that can adversely affect product quality.

PMC Lone Star offers a proprietary coating which far exceeds the wear resistance of plain steel, chrome plated, and TiN coated gages.